Machine for cutting i-beams or channel-bars



(No Model.) 2 Sheets-Sheet 1. J. KOBHLER.

MACHINE, POR CUTTING I-BBAMS 0R CHANNEL BARSt No. 438,252. Patented om.14, 1890.

lll

l I E gli TH: wams versus ca, mow-nwo.. msnwa'rou, u, cA

2 Sheets-Sheet 2.

(No-Model.)

J KOBHLBR MACHINE PORIUUTTING I-BBAMS 0R GHANNBLBARS. No. 438.252.

VPatented Oct. 14, 1890.

(E 94/7- awed. f

ATTORNEY.

, UNITED STATES PATENT OFFICE.

JOI-IN KOEHLER, OF CANTON, OHIO.

MACHINE FOR CUTTING I-BEAMS OR CHANNEL-BARS.

SPECIFICATION forming part of Letters Patent No. 438,252, dated October14, 1890.

Application iiled August 25, 1890. Serial No.363,022. (No model.)

VTo all whom t may concern:

Be it known that I, JOHN KOEHLER, a citizen of the United States,residing at Canton, in the county ot' Stark and State of Ohio, haveinvented certain new and useful Improvement-s in Machines for CuttingI-Beams or Channel-Bars or other Difficult Shapes; and I do herebydeclare that the following is afull, clear, and exact description of thesamle, reference being had to the annexed drawings, making a part ofthis specification, and to the letters of reference marked thereon, inwhich Figure 1 is a view of the blade-holding head, showing the sameproperly located-and the blades in position to cut the web of an I- beamor channel-bar, and also showing an I-beam properly located. Fig. 2 isan edge view of one of the cutting-blades. Fig. 3 is a detached View ofthe blade-holding link or key. Fig. 4 is a view illustrating thecuttingblades passed through -the web of an I-beam, said parts beingshown in dotted lines. Fig. 5 is a View showing the parting-wedge downin position to part the cutting-blades, also showing the cutting-bladesparted to cut the ilanges of an I-beam or channel-bar. Fig. 6 is adetached view of the wedge-block. Fig. 7 is a top lview of thebed-plate, showing the fixed or under dies properly located thereon andthe same securely clamped. Fig. 8 is a view showing the fixed of underdies together with their dierent attachments detached. Fig.` 9 is a viewshowing an I-beam properly clamped and placed upon the bedplate, and thecutting-blades locked to the sliding head. Fig. l0 is a transversesection of one of the cutting-blades, showing the top or upper part ofthe blades full. Fig. 11 is a section through line, Fig. 1. Fig. l2 isan edge view of one of the clamping-links, showing the eccentricproperly attached thereto.

The present invention has relation to machines calculated and designedto cut I-beams or channel-bars by means of dies; and it consists in thedifferent parts and combination of parts hereinafter described, andparticularly pointed out in the claims.

Similar letters of reference indicate corresponding parts in all thegures of the drawings.

In the accompanying drawings, A represents the blade-holding head, whichis designed and calculated'to be moved up and down by a plunger operatedby means of an eccentric or other mechanism commonly used to operate areciprocating plunger in diepresses.

Within the head A are located the top orl upper portions of thecutting-blades B. These cutting-blades are each provided with the notchor groove a, which are for the purpose of receiving the ends of the keyb, and when it is desired to have the cutting-blades B t'ollow themovement offthe head A the key b is placed in the position illustratedin Fig. 9, thereby locking the blades B to the head A.

For the purpose of providing a means to extend the key b into thenotches or grooves a the openings c are provided.

To the barO are attached the bottom or lower web-dies D, which dies areso located and adjusted that they will come directly under or beneaththe web of an I-beam or channel-bar. These dies D are set far enoughapart to allow the cutting-blade B to pass down betweenv said dies D. i

To one end of the lower dies D is located the head E, which head isfixed to the bar C by means ot' seating a portion of said head E intothe groove d, or in any other well-known and convenient manner.

To the head E are securely att-ached the flange-dies d.

To the opposite ends of the dies D is located the movable head F, whichhead is provided with the ange-dies d2.

For the purpose of securely clamping an I-beam or channel-bar betweenthe heads E and F the links e are provided, which links receive thedie-heads E and F, substantially as illustrated in Figs. 7 and l2, andfor the purpose of binding the die-heads E and F against the outer facesof the ilanges designed to be cut the eccentric G is provided, whicheccentric is held to the links e by means of the bar f and the collarsf.

For` the purpose of operating the eccentric IOO should be set far enoughaway from the ends of the dies vD to allow the flanges of the I- beam orchannel-bar to be received between the die-head E and the ends of thedies D.

In use the beam designed to be cutis placed in the position illustratedin Fig. 9, at which time the sliding head A is forced downward until theblades B have passed through the web of the I-beam or channel-bar andeX- tended to the bottom of the side flanges of the I-beam orchannel-bar, at which time the key b is removed from the head A, therebydisengaging the cutting-blades B from the sliding head A, at which timevthe sliding head A is again elevated, thereby forming the opening Hdirectly above the top or upper end of the parting-wedge H'. The blockor bar I is placed through the opening I-I and on the top of theparting-wedge H' and the sliding head A again forced downward, carryingwith it the parting-wedge H', and thereby expanding the cutting-bladesB, as illustrated by the dotted lines, Fig. 5, which cause thecuttingblades B to pass through the flanges of the I-beam orchannel-bar, after which the cutting-blades B and the parting-wedge H'are again placed in the position illustrated in Fig. l and the key bplaced in the position illustrated in Fig. 9.

For the purpose of providing stops for the cutting-blades B the rollersg are provided, which rollers are placed through the apertures g' androll or slide on the die-heads E and F, when the blades B are expandedby means of the parting-wedge H.

It will be understood that the inner edges of the cutting-blades Bshould be provided with a V-shaped groove h, which are for the purposeof receiving a V-shaped ridge upon the edges of the parting-wedge H',thereby preventing any accidental lateral displacement of theparting-wedge H.

For the purpose of assisting in holding and elevating the cutting-bladesB the helical springs .I are provided and are attached in any well knownand convenient manner to the pins h' and h2 or their equivalents.

In the drawings, K represents the bedplate, which is attached to thepress-frame K' in the ordinary manner.

It will be understood that other means may be used for parting thecutting-blades B without departing from the nature of my invention.

I-laving fully described my invention, what I y claim as new, and desireto secure by Letters Patent, is-

l. The sliding heads A, havin glocated therein the cutting-blades B, theparting-wedge H', the fixed dies D, and the flange-dies d and d2,substantially as and for the purpose speciiied.

2. The combination of the heads A, the cutting-blades B, provided withthe notch or groove a, the key d, and the parting-wedge H',substantially as and for the purpose specified.

3. The combination of the head A, having located therein and carryingthe cuttingblades B, the dies D, d', and d2, and means for parting thecutting-blades B, substantially as and for the purpose set forth.

4. The head A, having located therein the cutting-blades B, theparting-wedge H', located between the cutting-blades B, and the block orbar I, substantially as and for the purpose set forth. l

5. The combination of the bar C, having attached thereto the dies D, thedie-head E, fixed to the bar C, the movable head F, the links e, and theeccentric G, substantially as and for the purpose set forth.

6. The combination of the head A, the cutting-blades B, the stop-rollersg, the dies D, d', and d2, and means for clamping an I-beam orchannel-bar, substantially as and for the purpose specified.

7. A device for cutting I-beams, channelbars, or other difficult shapesin which the central portion is rst removed by the blades B operatingagainst the die D, and the outer portions then removed by blades B,operated against the lateral blocks E and F at or nearly at right anglesto the direction of motion in making iirst cut by means ot' the wedgeIl', or other equivalent device, substantially as specied.

In testimony that I claim the above I have hereunto subscribed mynameinthe presence of two witnesses.

JOHN KOEHLER.

Witnesses:

E. A. C. SMITH, F. W. BOND.

